131496247 has 2 divisors, whose sum is σ = 131496248. Its totient is φ = 131496246.

The previous prime is 131496229. The next prime is 131496257. The reversal of 131496247 is 742694131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131496247 - 2⁷ = 131496119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131496217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65748123 + 65748124.

It is an arithmetic number, because the mean of its divisors is an integer number (65748124).

Almost surely, 2^131496247 is an apocalyptic number.

131496247 is a deficient number, since it is larger than the sum of its proper divisors (1).

131496247 is an equidigital number, since it uses as much as digits as its factorization.

131496247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 131496247 is about 11467.1813014359. The cubic root of 131496247 is about 508.5158015076.

The spelling of 131496247 in words is "one hundred thirty-one million, four hundred ninety-six thousand, two hundred forty-seven".